When considering total knee replacement surgery, it is important to consider not only the implant that will replace your natural knee, but also the technique your surgeon will use. Experience how the Evolution® Medial-Pivot Knee System exceeds the limitations of traditional knee replacements when combined with our latest knee technology, the Kinematic Alignment (KA) technique.

Our Kinematic Alignment technique allows a surgeon to recreate your knee’s natural joint line before it was affected by arthritis. This innovative technique, in addition to our Evolution® Medial-Pivot Knee System, personalizes the procedure according to your joint alignment, which studies have shown may help achieve higher patient satisfaction.1,2

Why Choose Kinematic Alignment?

Our Medial-Pivot implant design replicates the natural stability and motion of your normal knee, while also delivering an innovative solution to address problems such as instability, knee pain, or functional limitations. When combined with our Kinematic Alignment technique, your surgeon can restore the natural alignment your knee had before arthritis.

Some studies have demonstrated that Kinematic Alignment may result in:

  • Improved quality of life
  • Increased patient satisfaction3 
  • Reduced pain, joint stiffness, and instability
  • Higher joint function4 
  • Balanced, normal feeling knee VS Mechanical Alignment
Kinematic Alignment Patient Animation

A Total Knee Replacement Surgery, Unique to You

MicroPort’s Kinematic Alignment technique combined with the Medial-Pivot design philosophy creates a personalized surgical approach to total knee replacement surgery. Traditionally, most knee surgeries use a technique called Mechanical Alignment to reference where the implant will be placed. However, this approach precisely fits approximately 2.2% of the patient population.6 Though the Mechanical Alignment (MA) approach achieves over 80% patient satisfaction, approximately 20% of patients remain unsatisfied with their total knee replacement due to instability, stiffness, pain, or a patient’s inability to perform at a high level.5,7,8 With our Kinematic Alignment technique and the Evolution® Medial-Pivot Knee, we strive to address the 20% of patients not satisfied.

Patient Resources

Five Things You should Ask your hip surgeon

Five things to ask your knee surgeon

Five Things You should Ask your hip surgeon

Knee replacement FAQ


Every patient is different, and individual results will vary. There are risks and recovery times associated with surgery. Consult your doctor to determine if joint replacement surgery is right for you.

Individual results and activity levels after surgery vary and depend on many factors including age, weight and prior activity level. There are risks and recovery times associated with surgery and there are certain individuals who should not undergo surgery. Please click here to read about risks associated with surgery. Only a physician can tell you if this product and associated procedure are right for you and your unique circumstances. Please consult with a physician for complete information regarding benefits, risks and possible outcomes.

These surgeons are paid consultants for MicroPort Orthopedics. The opinions expressed are theirs alone and do not necessarily reflect the opinions of MicroPort Orthopedics Inc.

  • References
    1. Jeremić, D. V., Massouh, W. M., Sivaloganathan, S., Rosali, A. R., Haaker, R. G., & Rivière, C. (2020). Short-term follow-up of kinematically vs. mechanically aligned total knee arthroplasty with medial pivot components: A case-control study. Orthopaedics & Traumatology: Surgery & Research, 106(5), 921-927. 
    2. Rivière, C., Iranpour, F., Auvinet, E., Howell, S., Vendittoli, P. A., Cobb, J., & Parratte, S. (2017). Alignment options for total knee arthroplasty: a systematic review. Orthopaedics & Traumatology: Surgery & Research, 103(7), 1047-1056. 
    3. Gao, Z. X., Long, N. J., Zhang, S. Y., Yu, W., Dai, Y. X., & Xiao, C. (2020). Comparison of Kinematic Alignment and Mechanical Alignment in Total Knee Arthroplasty: A Meta‐analysis of Randomized Controlled Clinical Trials. Orthopaedic Surgery. 
    4. Nam, D., Maher, P. A., Robles, A., McLawhorn, A. S., & Mayman, D. J. (2013). Variability in the relationship between the distal femoral mechanical and anatomical axes in patients undergoing primary total knee arthroplasty. The Journal of arthroplasty, 28(5), 798-801. 
    5. Nisar, S., Palan, J., Rivière, C., Emerton, M., & Pandit, H. (2020). Kinematic alignment in total knee arthroplasty. EFORT Open Reviews, 5(7), 380-390. 
    6. Cherian, J. J., Kapadia, B. H., Banerjee, S., Jauregui, J. J., Issa, K., & Mont, M. A. (2014). Mechanical, anatomical, and kinematic axis in TKA: concepts and practical applications. Current reviews in musculoskeletal medicine, 7(2), 89-95. 
    7. Shelton, T. J., Gill, M., Athwal, G., Howell, S. M., & Hull, M. L. (2019). Outcomes in patients with a calipered kinematically aligned TKA that already had a contralateral mechanically aligned TKA. The journal of knee surgery. 
    8. Bourne, R. B., Chesworth, B. M., Davis, A. M., Mahomed, N. N., & Charron, K. D. (2010). Patient satisfaction after total knee arthroplasty: who is satisfied and who is not?. Clinical Orthopaedics and Related Research®, 468(1), 57-63.